If you can find the right connector, it isn't a difficult replacement. The connector on the MB is a block and is attached by just a few solder points. The trick is being able to find the correct connector. It would be a shame to junk the laptop just because of the connector.

Thanks to everyone for their advice. My replacement power supply finally arrived today. So, I plugged my laptop into it and hit the on button and bingo! It powered up. Back to normal. I'm typing this note on it, in fact.
Nice to have it back.